Metaphors have a way of holding the most truth in the least space.
As often I have been a science fiction writer writing science fiction for the community of science fiction readers, I am also, for good or ill, an American writing American literature to an American audience. Most fundamentally, though, I am a human being writing human literature to a human audience.
God, our genes, our environment, or some stupid programmer keying in code at an ancient terminal - there's no way free will can ever exist if we as individuals are the result of some external cause.
The priests say that God created our souls, and that just puts us under the control of another puppeteer. If God created our will, then he's responsible for every choice we make.
Among my most prized possessions are words that I have never spoken.
Ulysses, obviously. It was an elaborate prank, and our supposed intellectual elite continue to fall for it.